ISSN:
1434-6079
Schlagwort(e):
PACS. 32.80.Pj Optical cooling of atoms; trapping - 33.20.-t Molecular spectra - 34.20.-b Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract: We report on the formation of translationally cold Cs2 ground state molecules through photoassociation in the 1u attractive molecular state below the 6 s 1/2 +6 p 3/2 dissociation limit. The cold molecules are obtained after spontaneous decay of photoassociated molecules in a MOT and in a dark SPOT. We also used polarized atoms, in the f =3, m f =+3Zeeman ground state. Purely asymptotic and adiabatic calculations including hyperfine interaction and rotation are in excellent agreement with observed structures. As expected, the 1u state is actually a pure long-range state, consisting of paired atoms, uniquely linked by the first terms of the multipole expansion of the electrostatic interaction. A temperature of 20 K has been measured for the molecular cloud.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s100530070105
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